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Les Hanois Lighthouse

Guernsey

Location Guide

The Hanois Lighthouse rises from a rocky reef on the south west side of the Island, and takes its name from the group of rocks - Les Hanois. It marks the western end of the Channel Islands as well as providing a position fix for vessels entering the Channel Traffic Separation Scheme.

Hanois Lighthouse is important in the development of lighthouse engineering, because it was the first to be built with granite blocks interlocking both vertically and laterally. Various methods of jointing the stones in rock towers have been employed but was James Douglass who suggested that the stones might be dovetailed together both laterally and vertically. The cement mortar in the joint locks the dovetails so that the stones cannot be separated without being broken. This method was first employed at the Hanois Lighthouse, and it became the pattern for all sea rock towers.

A helideck was constructed above the lantern in 1979. Automation work began in July 1995 and the station became unwatched in January 1996. The station was converted to solar power with panels mounted around the lower part of the helideck support structure.

Photo by Graham and Dairne


Lighthouse information Grid

Name:

Les Hanois Lighthouse, Guernsey

Current status:

Currently in use

Geographic Position:

49 26.2 N 02 42.1 W

Grid Reference:

 

Ceremonial County:

Guernsey

Appearance:

tapered granite tower incorporating keeper's quarters, with lantern, gallery, and a helipad above the lantern. Lighthouse painted white.

Map Link:

 

Aerial photo:

 

Other photos:

photo    view from the mainland      closeup

Originally built:

1862

Current lighthouse built:

 

Height of Tower:

33 Metres

Height of light above mean sea level:

33 Metres

Character of light:

White Group Flashing Twice Every 13 Seconds

Character of fog signal:

Sounding Twice Every 60 Seconds

Range of light:

20 nautical miles

Owned / run by:

Trinity House

Getting there:

 

Access:

 

Website:

 

Other Useful Websites:

 

Routes:  
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For more articles, lists and other information see the Lighthouses Section

Featured list of Lighthouses - Channel Islands  

Notes:

 

Please let us know any other information that we can add to the Grid or page and any errors that you discover. Before making a long trip to any location it is always wise to double check the current information, websites like magazines may be correct at the time the information is written, but things change and it is of course impossible to double check all entries on a regular basis. If you have any good photographs that you feel would improve the illustration of this page then please let us have copies. In referring to this page it is helpful if you quote both the Page Ref and Topic or Section references from the Grid below. To print the planning grid select it then right click and print the selected area.

Please submit information on locations you discover so that this system continues to grow.

 


By: Tracey Park    Section:  Lighthouses Section Key:
Page Ref: CI_Les_Hanois_Guernsey Topic: Lighthouses Last Updated: 06/2010

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